Important Export Restrictions! Commodities, products, technologies and services of this manual are controlled by the U.S. Department of State Office of Defense Trade Controls, in accordance with International Traffic in Arms (ITAR), Title 22, Code of Federal Regulations Part 120-130 and/or by the Export Administration Regulations (EAR) of U.S. Department of Commerce. At any time when a license or a written approval of the U.S. Government is applicable to it, it is illegal and strictly forbidden to export, intend to export, transfer in any other manner whatsoever, sell any hardware or technical data, provide any associated service to any non-U.S. resident, beyond or within the United States territory, until the valid license or written approval has been issued by the Departments of the U.S. Government having jurisdiction. Additionally U.S. law prohibits the sale, transfer, or export of items to certain restricted parties, destinations, and embargoed countries, as identified on lists maintained by the U.S. Department of State, the U.S. Department of Commerce, and the U.S. Department of Treasury. It is the responsibility of the Customer to be aware of these lists. The sale, transfer, transportation, or shipment outside of the U.S. of any product prohibited or restricted for export without complying with U.S. export control laws and regulations, including proper export licensing, documentation or authorization, is unlawful and may result in civil and/or criminal penalties and/or constitute a federal crime. Diversion contrary to U.S. law is strictly prohibited.

N-15Night Vision Goggles

OperatiON aNd MaiNteNaNce MaNual

2

The information provided in this manual is for familiarization purposes only. The contents may undergo further changes with no commitment by Armasight© to notify customers of any updates.Armasight© assumes no responsibility for any misprints or other errors that this manual may contain.© Armasight Inc. 2013

SAFETY SUMMARY

Before operating this product, carefully study this Operation and Maintenance Manual.The N-15 is a precision electron-optical instrument, and requires careful handling. To avoid damage to the equipment or physical harm to the user when operating the N-15, follow all WARNINGS, CAUTIONS and NOTES.Below you will find definitions of the following alerts that appear throughout this Manual:WARNING — Identifies a clear danger to the person operating the equipment.CAUTION – Identifies risk of damage to the equipment.NOTE – Highlights essential procedures, conditions, statements, and important instructional informa-tion for the user.

WARNING: This product contains natural rubber latex, which may cause allergic reactions! The FDA has reported an increase in the number of deaths that are associated with an apparent sensitiv-ity to natural latex proteins. If you are allergic to latex, it is a good idea to learn which products contain it and strictly avoid exposure to those products.

WARNING: • Thelightfromtheunitinfrared(IR)illuminatorisinvisibletotheunaidedeyewhenusedintotal darkness. However, the light can be detected by other Night Vision Devices (NVD).•ToreducetheriskofdetectionbyanotherNVD,avoidprolongedactivationoftheIRillumina-tor.•TheIRlightismoredetectablebyanNVDwhenusedinsmoke,fogandrain.Avoidprolongedactivation of the unit IR illuminator in these conditions. • Theintensifier’sphosphorscreencontainstoxicmaterials.Pleasenotethefollowing:— If the intensifier tube breaks, be extremely careful to avoid inhaling the phosphor screen material. DO NOT allow the material to come in contact with your mouth, eyes, or any open wounds on the skin.— If the phosphor screen material comes in contact with your skin, wash it off immediately with soap and water.— If you inhale or swallow any phosphor screen material, drink a lot of water, induce vomiting, and seek medical attention as soon as possible.

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CAUTION: • TheN-15 is a precision electron-optical instrument, andmust be handled carefully at alltimes to prevent damage to the device and danger to the user.• Toprotecttheintensifiertube,do not remove the lens cap of the N-15 when the goggles is being operated in daylight conditions, or when the device is not in use. • UseoftheN-15inbrightlylitconditionsmaydamagetheunit’sintensifiertube.• Bright light sources such as firelight, headlights, searchlights, etc. can damage the N-15.Avoid exposing the unit to these types of light sources.• Beforeremovingthelenscap,verifythatthephotoreceiverisopenandAutomaticProtectiveSystem is ON (a green flashing LED in the eyepiece viewing area is absent).• DONOTattempttoforcethecontrolspasttheirstoppingpoints,asthismaycausedamageto the mechanisms. • Theunitmaybebadlydamagedifthetripodonwhichitismountedcollapsesoroverturns.Remove the unit from the tripod if it is not within your reach.• Beforereplacingtheintensifiertube,confirmthatitisnolongercoveredbywarranty.• ThoroughlydryeachcomponentoftheN-15beforeplacingtheminthestoragecase.

NOTES: • Theequipmentrequiressomeambientlight(moonlight,starlight,etc.)tooperate.• Performanceofthedeviceinnighttimeconditionsdependsonthelevelofambientlightinthe environment. Please remember the following:— The level of ambient light is reduced by the presence of clouds, shade, or objects that block natural light (trees, buildings, etc.).— The equipment is less effective when operated in shadows and other darkened areas.— The equipment is less effective when operated in rain, fog, sleet, snow, dust or smoke.— The equipment will not “see” through dense smoke.• Atoperatingtemperaturesbelow-20°C(-4°F), theuseofanalkalinebattery isnotrecom-mended, as the battery life will be severely reduced. Under said conditions, lithium-iron disul-fide1.5VAAbatteriesortheirequivalentshouldbeused.• Thebuilt-inIRilluminatorisintendedforincreasedillumination,asneeded,whenviewingata close distance of up to 3m.• Forthepurposeofreturningdefectivecomponents,retainallpackagingmaterials.

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LIST OF CONTENTS

TITLE PAGE

Safety Summary 2List of Contents 4List of Figures 5List of Tables 6How to Use This Manual 6

1. INTRODUCTION 71.1 General Information 71.1.1 Type of Manual 71.1.2 Model Number and Equipment Name 71.1.3 Purpose of Equipment 71.1.4ReportingEquipmentImprovementRecommendations 71.2 Warranty Information and Registration 81.2.1 Warranty Information 81.2.2 Limitation of Liability 81.2.3 Product Warranty Registration 81.2.4ObtainingWarrantyService 91.3 List of Abbreviations 9

2. DESCRIPTION AND DATA 102.1 System Description 102.2 Specifications 112.3 Standard Components 132.4 Optional Equipment 142.5 Key Features 15

3. OPERATING INSTRUCTIONS 163.1. Installation and Mounting 163.1.1 Battery Installation 163.1.2 Mounting the N-15 to a Goggle Kit 173.1.3 Mounting the N-15 to a Helmet 173.1.4MountingtheN-15toaStandardUSMilHelmet/HeadgearAssembly 183.1.5MountingaLong-RangeIRIlluminatortotheN-15 193.1.6MountingaCamera/CamcordertotheN-15 193.1.7 Mounting 3X Afocal Lenses to the N-15 203.1.8 Mounting a Demist Shield to the N-15 203.1.9MountingaSacrificialWindowtotheN-15 203.2 Controls and Indicators 203.2.1 Controls and Indicators 203.3 Operating Procedures 213.3.1 Operating Procedures 213.3.2 IR Illuminator Operations 223.3.3 Operating Under Changing Light Conditions 233.3.4N-15Shut-Down 233.4 Storage 233.4.1PreparationforStorage 23

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4. PREVENTIVE MAINTENANCE AND TROUBLESHOOTING 244.1 Preventive Maintenance Checks and Services 244.1.1PreventiveMaintenanceChecksandServices(PMCS) 244.2 Troubleshooting 264.2.1OperatorTroubleshooting 264.3 Identification of Operational Defects 264.3.1OperationalDefects 264.3.2CosmeticBlemishes 274.4 Maintenance 294.4.1General 294.4.2CleaningProcedures 294.4.3BatteryRemovalandReplacement 294.4.4GoggleKitMaintenance 294.5 Service/Packing and Unpacking 314.5.1ReturnInstructions 31

APPENDIX 32A. N-15 List of Spare Parts 32B. Intensifier Tube Replacement Manual 33C. Product Warranty Registration Card 35

LIST OF FIGURES

FIGURE TITLE PAGE

2-1 N-15NightVisionGoggles 112-2 N-15 Standard Components 133-1 Battery Installation 163-2 Mounting the N-15 to a Goggle Kit 173-3 Mounting the N-15 to a Helmet 183-4 MountingtheN-15toaUSMilHelmet/HeadgearAssembly 183-5 MountingaLong-rangeIRIlluminatortotheN-15 193-6 Camera Adapter 203-7 Mounting 3X Afocal Lenses to the N-15 203-8 N-15 Controls 213-9 IRIlluminatorOperations 234-1 Shading 274-2 EdgeGlow 274-3 EmissionPointsandBrightSpots 284-4 Fixed-PatternNoise 284-5 ChickenWire 284-6 BrowpadReplacement 304-7 ChinStrapReinstallation 304-8 ChinCupReplacement 30A-1 N-15 Spare Parts 32B-1 Intensifier Tube Replacement 35

6

LIST OF TABLES

TABLE TITLE PAGE

2-1 N-15 System Description 112-2 Mechanical Data 112-3 Electrical Data 122-4 OpticalData 122-5 Environmental Data 122-6 N-15 Standard Components 132-7 N-15OptionalEquipment 143-1 N-15 Controls and Indicators 214-1 PreventiveMaintenanceChecksandServices 244-2 OperatorTroubleshooting 26A-1 N-15 List of Spare Parts 32

HOW TO USE THIS MANUAL

USAGEYou must familiarize yourself with the entire manual before operating the equipment. Before perform-ing any kind of maintenance on your device, read the section on maintenance in its entirety. Follow all WARNINGS, CAUTIONS, and NOTES.

MANUAL OVERVIEWThismanualcontainssectionsonOperatingandMaintainingtheN-15NightVisionGoggles.The list of Spare Parts can be found in Appendix A.The Intensifier Tube Replacement Manual can be found in Appendix B.The Product Warranty Registration Card can be found in Appendix C.

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1INTRODUCTION

1.1 GENERAL INFORMATION

1.1.1 TYPE OF MANUALOperation and Maintenance (including a List of Spare Parts and an Intensifier Tube Replacement Man-ual).

1.1.2 MODEL NUMBER AND EqUIPMENT NAMEN-15NightVisionGoggles

1.1.3 PURPOSE OF EqUIPMENTTo provide the operator with the ability to observe at night under moonlight and starlight con-ditions.The N-15 can be used as a handheld, head-mounted or helmet-mounted device to allow walking, short-range surveillance, map reading, vehicle maintenance, and administering of first aid.TheN-15allowsforhorizontalandverticaladjustmentswhenmountedtotheuser’sheadorhelmet,and is equipped with an infrared light-emitting source (IR illuminator).

1.1.4 REPORTING EqUIPMENT IMPROVEMENT RECOMMENDATIONSRecommendations from the user for improvements to the device are encouraged.MailyourcommentstoArmasightInc.,815DubuqueAvenue,SouthSanFrancisco,CA94080,USA.Or, send an email to info@armasight.com.

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1.2 WARRANTY INFORMATION AND REGISTRATION

1.2.1 WARRANTY INFORMATIONThis product is guaranteed to be free from manufacturing defects in material and workmanship under normal use for a period of two (2) years from the date of purchase. In the event that a defect covered by the below warranty occurs during the applicable period stated above, Armasight, at its discretion, will either repair or replace the product; such action on the part of Armasight shall be the full extent of Armasight’sliability,andtheCustomer’ssoleandexclusivereparation.Thiswarrantydoesnotcoveraproduct if it has (a) been used in ways other than its normal and customary manner; (b) subjected to misuse; (c) subjected to alterations, modifications or repairs by the Customer or by any party other than Armasight without prior written consent of Armasight; (d) special order or “close-out” merchandise or merchandise sold “as-is” by either Armasight or the Armasight dealer; or (e) merchandise that has been discontinued by the manufacturer and either parts or replacement units are not available due to reasons beyond the control of Armasight. Armasight shall not be responsible for any defects or dam-age that inArmasight’sviewarea result fromthemishandling,abuse,misuse, improper storageorimproper operation of the device, including use in conjunction with equipment that is electrically or mechanically incompatible with, or of inferior quality to the product, as well as failure to maintain the environmental conditions specified by the manufacturer. CUSTOMER IS HEREBY NOTIFIED THAT OPER-ATIONOFTHEEQUIPMENTDURINGDAYLIGHTHOURSORUNDERANYEXCESSIVELIGHTCONDITIONSMAY PERMANENTLY DAMAGE THE INTERNAL COMPONENTS OF THE UNIT AND SAID DAMAGE WILL NOTBECOVEREDUNDERTHISWARRANTY.Thiswarrantyisextendedonlytotheoriginalpurchaser.Any breach of this warranty shall be enforced unless the customer notifies Armasight at the address noted below within the applicable warranty period.The customer understands and agrees that except for the foregoing warranty, no other warranties written or oral, statutory, expressed or implied, including any implied warranty of merchantability or fitness for a particular purpose, shall apply to the product. All such implied warranties are hereby and expressly disclaimed.

1.2.2 LIMITATION OF LIABILITYArmasight will not be liable for any claims, actions, suits, proceedings, costs, expenses, damages or liabilities arising out of the use of this product. Operation and use of the product are the sole responsi-bilityoftheCustomer.Armasight’ssoleundertakingislimitedtoprovidingtheproductsandservicesoutlined herein in accordance with the terms and conditions of this Agreement. The provision of prod-ucts sold and services performed by Armasight to the Customer shall not be interpreted, construed, or regarded, either expressly or implied, as being for the benefit of or creating any obligation toward anythirdpartyoflegalentityoutsideArmasightandtheCustomer;Armasight’sobligationsunderthisAgreementextendsolelytotheCustomer.Armasight’sliabilityhereunderfordamages,regardlessofthe form or action, shall not exceed the fees or other charges paid to Armasight by the customer or customer’sdealer.Armasightshallnot,inanyevent,beliableforspecial,indirect,incidental,orconse-quential damages, including, but not limited to, lost income, lost revenue, or lost profit, whether such damages were foreseeable or not at the time of purchase, and whether or not such damages arise out of a breach of warranty, a breach of agreement, negligence, strict liability or any other theory of liability.

1.2.3 PRODUCT WARRANTY REGISTRATIONIn order to validate the warranty on your product, Armasight must receive a completed Product War-ranty Registration Card for each unit, or the Customer can complete a warranty registration on our website, at www.armasight.com. Please complete the included form (Appendix C) and immediately mail it to our Service Center: Armasight Inc.815 Dubuque AvenueSouth San Francisco CA94080USA

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1.2.4 OBTAINING WARRANTY SERVICETo obtain warranty service on your unit, the End-user (Customer) must notify the Armasight service department via email. Send any requests to service@armasight.com to receive a Return Merchandise Authorization number (RMA). When returning any device, please take in the product to your retailer, or sendtheproduct,postagepaidandwithacopyofyoursalesreceipt,toArmasightCorporation’sser-vice center at the address listed above. All merchandise must be fully insured with the correct postage; Armasight will not be responsible for improper postage or merchandise that becomes lost or damaged during shipment. When sending product back, please clearly write the RMA# on the outside of the shippingbox.PleaseincludealetterthatindicatesyourRMA#,theCustomer’sName,aReturnAddress,reason for the return, Contact information (valid telephone numbers and/or an e-mail address), and proof of purchase that will help us to establish the valid start date of the warranty. Product merchan-dise returns that do not have an RMA# listed may be refused, or a significant delay in processing may occur. Estimated Warranty service time is 10-20 business days. The End-user/ Customer is responsible for postage to Armasight for warranty service. Armasight will cover return postage/ shipping after war-ranty repair to the End-user/ Customer only if the product is covered by the aforementioned warranty. Armasight will return the product after warranty service by domestic UPS Ground service and/ or do-mestic mail. Should any other requested, required or international shipping methods be necessary, the postage/ shipping fee will be the responsibility of the End-user/ Customer.

1.3 LIST OF ABBREVIATIONS

C Celsius (Centigrade)CCW counterclockwiseCont’d ContinuedCW clockwiseDia diameterF FahrenheitFOV FieldofViewg gramGen GenerationH Heighthr hourIR infraredIIT Image Intensifier TubeL LengthLED Light Emitting Diodelx luxm metermA milliamperemin minute

mm millimetermW milliwattnm nanometerNo NumberNV NightVisionNVD NightVisionDevicePara ParagraphPMCS Preventive Maintenance Checks

and ServicesQRM Quick Release MountQTY QuantityRMA# Return Merchandise Authoriza-

tion numbers secondseq sequenceSR Service RepresentativeVDC VoltsDirectCurrentV VoltW Width

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2DESCRIPTION AND DATA

2.1 SYSTEM DESCRIPTION

The N-15 is a hand-held, head-mounted or helmet-mounted night vision system that allows the user to operate it while walking, conducting short-range surveillance, reading maps, conducting vehicle maintenance, or administering first aid in both moonlight and starlight conditions.The N-15 utilizes the principle of intensification of the residual light that is reflected from the surround-ing objects. The optical system of the unit consists of an objective lens, an intensifier tube (IT), and an eyepiece.The N-15 automatic brightness adjustment system retains the same gain (image brightness), even un-der unsteady light conditions.The N-15 automatic protective system controls illumination through a photoreceiver. If the illumination level surpasses 100-300 lx for more than 10 s, the unit will shut off automatically.Automatic shut-off system automatically turns off the device when it is unused (controls are not touched) for 60 minutes. The automatic shut-off function preserves battery life should the device be inadvertently activated.A built-in IR illuminator makes it possible to use the unit in low light or total darkness.The N-15 uses LED lights to indicate illumination level, low battery, and to show the user that the IR illuminator is on.TheN-15allowsforverticalandfore-and-aftadjustmentwhenmountedtotheuser’sheadorhelmet,when focusing the lens, and when focusing the eyepiece.

NOTE:The equipment requires some light (moonlight, starlight, etc.) to operate. Performance of the device depends upon the level of ambient light in the environment. Please remember the fol-lowing:— The level of ambient light in the environment is reduced by the presence of clouds, shade, or objects that block natural light (trees, buildings, etc.)— The equipment is less effective when operated in shadows and other darkened areas.— The equipment is less effective when operated in rain, fog, sleet, snow, or smoke.— Under starlight conditions, particularly in low-contrast environments such as snow-cov-ered territory, sandy deserts, large bodies of water or grassy hills, the visibility may degrade, thereby disguising or masking changes in terrain.— The equipment will not “see” through dense smoke.

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FIGURE 2-1. N-15 NIGHT VISION GOGGLES

13

910

4

6

5

7

2

11

3

1

8

12

14

TABLE 2-1. N-15 SYSTEM DESCRIPTION

ITEM DESCRIPTION ITEM DESCRIPTION

1 Body 8 Battery Compartment

2 Rail 9 IR Illuminator

3 Eyepiece Ring 10 Pivotal Focusing Lens

4 Eyepiece 11 Photoreceiver

5 Eye-cup 12 Lens

6 Function Switch 13 Focus Ring

7 Battery Cap 14 Lens Cap

2.2 SPECIFICATIONS

TABLE 2-2. MECHANICAL DATA

EqUIPMENT ITEM DIMENSIONS WEIGHT

N-15NightVisionGoggles 117х114х69mm/4.6x4.5x2.7in 700g/24.7oz

Goggle Kit 280x180x80 mm / 11x7x3.2 in 295g/10.4oz

Flip-up Helmet Mount* 140х70х90mm/5.5x2.7x3.5in 210g/7.4oz

XLR-IR850 (w/o mount)* 150х46х46mm/5.9x1.8x1.8in 210g/7.4oz

Sacrificial Window* 30x30х7 mm / 1.2x1.2x0.3 in 5 g / 0.2 oz

Demist Shield* 8.5x8.5х5.5 mm / 0.3x0.3x0.2 in 4g/0.1oz

Camera Adapter* 60x60х22 mm / 2.3x2.3x0.8 in 52 g / 1.8 oz

3X Lens* 60x60х80 mm / 2.3x2.3x3.1 in 200 g / 7 oz

* Optional

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TABLE 2-3. ELECTRICAL DATA

ITEM DATA

Battery OneAA(1.5V)or123A(3V)*

Continuous Operation** at 20 oC (68oF): - AA Alkaline Battery - 123A Lithium Battery

up to 25 hours upto40hours

* Any AA or CR123 type rechargeable batteries with voltage from 1.2V to 3.7V can be used.** With IR illuminator off.

TABLE 2-4. OPTICAL DATA

ITEM DATA

Magnification:— with 1X Lens— with 3X Lens*

(1±0.05) X(3.3±0.2) X

1X Lens:— Focal Length — Lens F/number

27 mm 1:1.2

Focus Range:— with 1X Lens— with 3X Lens*

0.25 m to infinity5 m to infinity

FOV:— with 1X Lens— with 3X Lens*

40°12°30’

Exit Pupil Diameter 14mm

Eyepiece Focal Length 27 mm

Eye Relief 25 mm

Eyepiece Diopter Adjustment -6 to +2 diopters

Built-in IR Illuminator— Power— Illumination Range— Focus Distance— Illumination Wavelength

50 mW20 m3 m850 nm

* Optional.

TABLE 2-5. ENVIRONMENTAL DATA

ITEM DATA

Operating Temperature -40°Cto+50°C

Storage Temperature -50°Cto+70°C

Humidity 95%,25°Cto40°Cfor48hr

Illumination Required Natural night illumination (overcast starlight to moonlight)

Environmental Rating Water and Fog-Resistant

MIL-STD-810 Complies

* Optional.

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2.3 STANDARD COMPONENTS

The standard components of the N-15 are shown in Figure 2-2 and listed in Table 2-6.The ITEM NO. column indicates the number used to identify items in Figure 2-2.

1

2

34

5

6 7

FIGURE 2-2. N-15 STANDARD COMPONENTS

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TABLE 2-6. N-15 STANDARD COMPONENTS

ITEM NO. DESCRIPTION qUANTITY

1 NightVisionGoggles 1

2 Lens Cap 2

3 Eye-cup 2

4 Battery Adapter 1

5 Battery CR123A Lithium 1

6 Goggle Kit 1

7 Operation and Maintenance Manual 1

8 Carrying Case 1

1) Armasight N-15 Night Vision GogglesGoggles night vision device with unity magnification.2) Lens CapA cap used to protect the lens and to be used when testing the unit in daylight.3) Eye-cupA rubber cup used to protect the eyepiece as well as provide comfort for the operator.4) Battery AdapterAllowsofuseofasingle3VCR123or1.5VAAbatteries.5) Battery 123A LithiumA single, 123A lithium battery used to power the unit. 6) Goggle Kit AdjustableuniversalassemblythatsecurestheN-15totheoperator’sheadprovidinghands-freeoperation.7) Operation and Maintenance ManualProvides safety information, equipment description, mounting procedures, operating instructions, and preventive maintenance checks and service (including a List of Spare Parts and an Intensifier Tube Replacement Manual).8) Carrying CaseA protective case used for storing and carrying of the N-15 and its accessories.

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2.4 OPTIONAL EqUIPMENT

Optional items are shown and listed in Table 2-7.The PART NO. column indicates the primary number used by the manufacturer to identify an item.

TABLE 2-7. N-15 OPTIONAL EqUIPMENT

IMAGE DESCRIPTION PART NO.

Afocal 3x Lens Kit Quickly converts the N-15 into a long-range night vision device. Ideal for long range observation.

ANAF3X0N15

Helmet Mount #4 Helps to mount the N-15 on a range of ballistic helmets.

ANHM000001

Transfer Adapter to PVS-7/PVS-14 Headset/Hel-met #147 Helps to mount the N-15 to standard US Mil headset (PVS-7/PVS-14type)and/orhelmet.

ANHG000147

XLR-IR850 Detachable Wide Angle Adjustable X-Long-Range Infrared IlluminatorA detachable LED long-range infrared illuminator with a wide, adjustable beam angle. Comes fully assembled with a dedicated mount in order to be installed on a Picatinny/Weaver rail. The 18650 re-chargeable battery, and Charger are included.

ANKIXLR017

XLR-IR Afocal DoublerDoubles the distance of XLR-IR850 IR Illuminator beam.Comescompletewithanthreadadapter#174.

ANAF18XXLR

Camera Adapter #46 An adapter with step down ring that allows the N-15 to be attached to any 35 mm SLR camera or 8 mm camcorder.

ANAM000029

Time Tracker System #83 System/IIT service life recorder is a feature that lets you measure the hours of operation (within one minute) that have been used on the system.

ANCA000001

Demist Shield #34 When attached to the N-15 eyepiece, the demist shield prevents condensation from developing on the optics under rapid temperature changes.

ANLC000001

Sacrificial Window #30 This feature is useful in environments with large amounts of dust, dirt or debris in the air, as can be found in environments with high-speed winds or storm conditions. The sacrificial window preserves the objective lens of the N-15.

ANLC000002

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IMAGE DESCRIPTION PART NO.

Hard Shipping/Storage Case #101A protective case used for the shipping/ storage of the N-15 and its accessories.

ANHC000001

2.5 KEY FEATURES

Gen 2+/3 intensifier tube – Automatic bright light cut-off system to protect the intensifier tube – LED lights visible in the eyepiece viewing area that indicate operation of the bright light cut- – off system and IR illuminator, as well as to alert the user of a low battery Built-in IR illuminator with pivotal lens to select between IR spot and flood beam – Lightweight – Compact and robust design – Easy to operate – Serviceability under severe conditions – High-performance – Highly reliable – Powered by single CR123A or AA battery – Head or helmet-mountable for hands-free usage – Adaptable for use with cameras – Automatic – turn-off in top position feature with flip-up head/ helmet mount Automatic shut-off system – Water and fog-resistant design – Limited two-year warranty –

TABLE 2-7. CONTINUED

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3OPERATING INSTRUCTIONS

3.1 INSTALLATION AND MOUNTING

CAUTION:To protect the intensifier tube when the sight is not in use or when it is being operated in day-light, keep the protective lens cap securely fitted over the lens.

3.1.1 BATTERY INSTALLATIONThe N-15 operates on a single CR123A or AA battery.Depending on the size of the battery used, it may be necessary to reposition the battery adapter within the battery cap.

NOTE:Ifoperatingthedeviceattemperaturesbelow-20°C(-4°F),theuseofanalkalinebatteryisnotrecommended, as the severe cold will adversely affect the life of the battery. In these conditions, itisrecommendedthatyouusealithium-irondisulfide1.5VAAbattery,oritsequivalent.

Install the CR123A battery as follows:1. Unscrew the battery cap (A) and insert the CR123A battery (B), observing the polarity markings on the body of the device.2. With the battery adaptor (C) installed, screw the battery cap (A) back on securely.

A

DBA

FIGURE 3-1. BATTERY INSTALLATION

B

C C

17

Install the AA battery as follows:1. Unscrew the battery cap (A). 2. Unscrew the battery adaptor (C) from the cap, turn it around, and screw in the other end.3. Insert the AA battery (D), observing the polarity markings as indicated on the body of the device.4.Screwthebatterycap(A)backintoplace.

3.1.2 MOUNTING THE N-15 TO A GOGGLE KITMount the N-15 to the optional goggle kit as follows:1. Put on the goggle kit. Adjust the goggle kit strap pads until the goggles fit securely around your head. Remove the goggle kit.2. Loosen the screw (A). While pushing down on the button (B), insert the N-15 rail into the guide (C) of the goggle kit bracket. Tighten the screw (A). 3. Put on the goggle kit, now mounted with the N-15.4.Toadjusttheequipmentforgreatercomfort,loosenthescrew(A)andmovetheunitalongtheguide(C).5. The goggle kit has a flip-up mechanism. Push the button (D) of the goggle kit bracket and lift the unit up until it reaches its top position. The unit will automatically turn off when it reaches this position.6. Push the same button (D) to lower the unit into the correct viewing position. Rotate the functional switch to OFF position and then to ON position to continue your session.7. With the button (E) pushed, move the unit along the slide-rail (F) until the desired, most comfortable position is reached.8. To remove the N-15 from the goggle kit, loosen the screw (A), push the button (B), and slide the unit out of the bracket guide (C).

3.1.3 MOUNTING THE N-15 TO A HELMET An optional flip-up helmet mount can be used to attach the N-15 to a helmet. The helmet mount fits the N-15 securely onto helmet via a rugged strapping device and grooved hooks. With the helmet mount,theN-15canbepositioneddirectlyinfrontoftheuser’seyes,orflippedbackwards,outofthefield of view.Mount the N-15 to a helmet as follows:1. Attach the mount to the helmet as shown in Figure 3-3.2. Adjust and tighten the strap (A).3. Loosen the screw (B). With the button (C) pushed down, insert the N-15 rail into the guide (D) of the helmet mount bracket. Tighten the screw (B). 4.PutonthehelmetwiththeN-15attached.

C

D

E F

B

A

FIGURE 3-2. MOUNTING N-15 TO A GOGGLE KIT

18

5. Push the button (F) and move the unit along the slide-rail (G) until the most comfortable position is reached.6. Adjust the mount for comfortable using. Loosen the screw (B) and move the unit along the guide (D) for eye relief adjustment. Turn the lever (H) and move the unit along vertical slide-rail until the most comfortable vertical position is reached. Push the button (F) and move the unit along the slide-rail (G) until the most comfortable position is reached.7. The helmet mount has a flip-up mechanism. Push the button (E) of the mount bracket and lift the unit up until it reaches its top position. Once it reaches this position, the unit will turn off automatically.8. Push the same button (E) to lower the N-15 into the proper viewing position. Rotate the functional switch to OFF position and then to ON position to continue your session.9.ToremovetheN-15fromthehelmetmount,loosenthescrew(B),pushdownonthebutton(C),andslide the unit out of the guide (D). To remove the flip-up mechanism from the helmet mount, loosen the lever (H), pull the knob out (I), and slide the flip-up mechanism out of the vertical rail.

FIGURE 3-3. MOUNTING THE N-15 TO A HELMET

C

DE

G

B

A

FI

H

3.1.4 MOUNTING THE N-15 TO A STANDARD US MIL HELMET/ HEADGEAR ASSEMBLY

To mount the N-15 to a standard US Mil helmet or headgear assembly use an optional transfer adapter. Perform the following steps: 1. Loosen the screw (A) of adapter. While pushing down on the button (B), insert the N-15 rail (C) into the guide (D) of the adapter. Tighten the screw (A).

A

C

FIGURE 3-4. MOUNTING THE N-15 TO A US MIL HELMET/HEADGEAR ASSEMBLY

B GD F

E

2. Align the adapter prism (E) with the helmet/ headgear assembly mount (F). Slide the N-15 until its alignment boss is in line with the alignment groove on the helmet/ headgear assembly mount. Push down until the N-15 locks into the helmet/ headgear assembly mount.

19

To dismount the N-15 from the helmet/ headgear assembly, push down on the lever (G) and remove the unit. Loosen the screw (A), push the button (B) and remove the adapter from the N-15 rail.

3.1.5 MOUNTING A LONG-RANGE IR ILLUMINATOR TO THE N-15 To mount an IR illuminator to the N-15, use the Dovetail to Weaver Transfer Piece. Perform the following steps:1. Install the transfer piece (A) onto one of the N-15 rails.2. Tighten the fixing screw (B) on the transfer piece .3. Loosen the IR illuminator fixing screw (C).4.MounttheIRilluminatorontheWeaverrailoftransferpieceandtightenthefixingscrew(C).

FIGURE 3-5. MOUNTING A LONG-RANGE IR ILLUMINATOR TO THE N-15

BG

A

C

E

F

H D

The Armasight XLR-IR850 runs on a single 18650 rechargeable battery. Fully charge the 18650 battery before installing in XLR-IR850 illuminator. Insert battery into charger, aligning the polarity symbols on the battery with the polarity symbols on the charger. Never install battery backwards.Connect power cord to an appropriate power source. Indicator light will flash red when a battery is charging, and will change to green when battery has been fully charged. Remove the battery promptly after charging has been completed.Install 18650 battery into the battery compartment of XLR-IR850. To install the battery, unscrew the battery compartment cap (D) and insert the battery in accordance with the polarity markings on the unit’sbody.Screwthebatterycompartmentcapbackintoposition.To turn the IR illuminator on, rotate the operation switch (E) from the OFF position.To change the radiated power level, turn the operation switch to one of the spots between the two OFF positions.Focus the IR beam to change the field of coverage. To adjust IR beam divergence, turn the lens (F) of IR illuminator.Adjust the IR spot position in the field of view of the N-15 as follows:1. Loosen the screw (G) of the clamp (H) on the IR illuminator mount.2. Turn on the night vision device and the IR illuminator. 3. Carefully move the IR illuminator up and down and side to side. While looking through the eyepieces of your device, observe the IR spot position.4.TightenthefixingscrewoftheclamponcetheIRspotiscenteredinthefieldofview.

3.1.6 MOUNTING A CAMERA/ CAMCORDER TO THE N-15To mount any 35mm SLR photographic camera or 8mm camcorder to the N-15, use the optional camera adapter and perform the following:1. Using the (M37x0.75 threaded) adapter ring (B), screw the (M52x0.75 threaded) adapter (A) into the front lens of the photographic camera or video camera.2. Remove the eyecup from the N-15 eyepiece.

20

3. Connect the adapter with the eyepiece and tighten the three fixing screws (C) located on the adapt-er.

3.1.7 MOUNTING 3X AFOCAL LENSES TO THE N-15To mount the 3x afocal lenses to the device, screw it into the threading of the standard 1X objective lenses of the N-15.

FIGURE 3-7. MOUNTING 3X AFOCAL LENSES TO THE N-15

B

A

3.1.8 MOUNTING A DEMIST SHIELD TO THE N-15Mount a demist shield to the N-15 as follows:1. Remove the eyecup from the N-15 eyepiece.2. Coat the demist shield with an anti-fogging compound, to prevent moisture condensation on the surface of the shield.3. Screw the demist shield into the threading of the eyepiece.4.Securetheeyecupbackintoplace.

3.1.9 MOUNTING A SACRIFICIAL WINDOW TO THE N-15Mount a sacrificial window to the N-15 as follows:1. Remove the N-15 lens cap.2. Screw the sacrificial window into the lens threading.

3.2 CONTROLS AND INDICATORS

3.2.1 CONTROLS AND INDICATORS The N-15 controls and indicators are defined in Table 3-1.The N-15 controls are shown in Figure 3-8.

BC

FIGURE 3-6. CAMERA ADAPTER

A

21

FIGURE 3-8. N-15 CONTROLS

C

D

B

AE

CAUTION:DO NOT over-adjust the controls by forcing them past their stopping points.

TABLE 3-1. N-15 CONTROLS AND INDICATORS

CONTROL/INDICATOR FUNCTION

Function Switch(Figure 3-8, A)

OFF position — the unit is off.

ON position — the unit is on (IT powered).Turn the unit on by turning the switch from OFF to ON.

IR position — the unit is on, and the IR illuminator is activated.Activate the IR illuminator by turning the switch from ON to the IR position.

Eyepiece Ring (Figure 3-8, B)

Adjusts the unit diopter. The total dioptric range is covered in a 1/2 ring revolution.

Focusing Ring (Figure 3-8, C)

Focuses the lens. Adjusts for sharpest view of the scene. The total focus range is covered in a 1/3 ring revolution.

Pivotal Focusing Lens (Figure 3-8, D)

Allows the user to choose between the following:1. The IR illuminator spot beam. The pivotal focusing lens is placed onto the IR illuminator output window.2. The IR illuminator flood beam. The pivotal focusing lens does not cover the IR illuminator output window.

Automatic Protective System Button (Figure 3-8, E)

Turns the protective system ON/OFF.

Built-in LED Indicators A GREEN GLOW in the eyepiece viewing area indicates excessive light conditions. After 10 sec of exposure to bright light, the intensi-fier will shut off automatically. The unit will turn back on again when moved away from the excessive light.

A FLASHING GREEN LIGHT in the eyepiece viewing area indicates that the Automatic Protective System is OFF.

A PERMANENT RED GLOW in the eyepiece viewing area indicates that the IR illuminator is operating.

A FLASHING RED LIGHT in the eyepiece viewing area indicates that the battery is low.

22

3.3 OPERATING PROCEDURES

3.3.1 OPERATING PROCEDURESThese procedures should be performed under nighttime conditions only.

CAUTION:UseoftheN-15inbrightlylitconditionsmaydamagetheunit’sintensifiertube.

1. Verifythatthebatteryisinstalledasindicatedonthegogglesbody.2. Make a visual estimation of the illumination level in the viewing area. The required level of illumina-tion is less than 1 lx (late twilight sky conditions).3. Remove the lens cap and place it over the housing of the lens.

CAUTION:Before removing the objective lens cap, verify that the photoreceiver is open and Automatic Protective System is ON (a green flashing LED in the eyepiece viewing area is absent).

4. TurnthefunctionswitchON.Afteraslightdelay,agreenglowwillappearintheeyepieceoftheGoggles.5. Adjust the unit diopter by rotating the ring of the eyepiece.6. Observe the scene. Rotate the focus ring until the image is clear and sharp.

CAUTION:Bright sources such as firelight, headlights, searchlights, etc. can damage the N-15. Avoid expos-ing the unit to these types of light sources.

NOTE:If the automatic shut-off system automatically turns off the device when it is used you need turn the operation switch to OFF position and then back to ON position for continuing the operation.

3.3.2 IR ILLUMINATOR OPERATIONS

CAUTION:Whenoperatingthedeviceinextremelydarkconditions,thelightfromtheunit’sIRilluminatorwillbeinvisibletotheunaidedeye.However,thelightcanbedetectedbyotherNVDs.

NOTE:The built-in IR illuminator is designed to provide additional illumination (when needed) while viewing scenes or targets from a short distance (up to 3m).

1. To activate the IR illuminator, turn the goggles on. Rotate the function switch (A) from ON to the IR position. A red light will appear in the eyepiece to indicate that the IR illuminator is operating. 2. Focus the IR light, if necessary, by placing the pivotal focusing lens (B) onto the IR illuminator output window (C).

23

FIGURE 3-9. IR ILLUMINATOR OPERATIONS

BAC

3.3.3 OPERATING UNDER CHANGING LIGHT CONDITIONS If the ambient light level exceeds the limit of 100-300 lx for more than 10 sec, the N-15 automatic pro-tective system will shut off the intensifier tube. If a mission must be carried out in changing light con-ditions, the user can turn off the protective system manually by pressing the special button (see Part 3.2.1).

CAUTION:DO NOT forget to turn on the protective system after completing your mission.

3.3.4 N-15 SHUT-DOWN1. Turn the function switch to OFF. The green glow of the viewing area will fade to black.2. Secure the lens caps over the objective lenses.3. If necessary, detach the accessories.4. Unscrewthebatterycapandtakeoutthebattery.Replacethebatterycap.Donotstoretheunitwith the battery still in it.5. Store the unit and all accessories in the case.

3.4 STORAGE

3.4.1 PREPARATIONS FOR STORAGE Prepare the N-15 for storage as follows:1. Verify that theN-15 and all accessories are clean anddrybefore returning them to the storagecase.2. Secure the cap over the objective lens.3. Remove the battery.4. PlacetheN-15andaccessoriesintheappropriatelocationsinthecase,andclosethecover.

24

4PREVENTIVE MAINTENANCE AND

TROUBLESHOOTING

4.1 PREVENTIVE MAINTENANCE CHECKS AND SERVICES

4.1.1 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)Table4-1:PreventiveMaintenanceChecksandServiceshasbeenprovidedsothatyoucankeepyourequipment operable and in good condition.PerformallfunctionaltestsintheorderlistedinTable4-1.Operating Procedures are detailed in Chapter 3.

A. CautionsAlways observe any CAUTIONS that appear in the table.

B. Explanation of Table EntriesSEq NO. column. Sequence numbers are for reference and appear in the order required to perform checks and services.LOCATION OF ITEM TO CHECK/ SERVICE column. Indicates the location and the item to be checked or serviced.PROCEDURE column. Details the checking/ servicing procedure.NOT FULLY MISSION CAPABLE IF... column. Indicates what faults will prevent your equipment from operating successfully.

TABLE 4-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

SEq NO.

LOCATION OF ITEM TO CHECK/ SERVICE PROCEDURE NOT FULLY MISSION

CAPABLE IF...

BEFORE OPERATION CHECKS

1 Completeness Open the carrying case and inventory items by means of comparing with the data specified in this manual.

Items are missing.

2 Soft Carrying Case

Shake out loose dirt or foreign material. Inspect for tears, cuts, excess wear or damage to the mounting clips.

3 External Surfaces

Inspect for cracks or damage. Scratches and gouges are OK if operation is not af-fected.

Cracked or damaged.

25

SEq NO.

LOCATION OF ITEM TO CHECK/ SERVICE PROCEDURE NOT FULLY MISSION

CAPABLE IF...

4 Lens Cap Inspect for cracked, torn, or missing lens caps. Cap is torn or cut. Cup is not secured to the housing of the lens.

5 Eyecup Inspect for dirt, dust. Inspect for cracked or torn, bent, broken or improperly fitting eyecup. Ifnecessary,cleanasperPara4.4.2.

Cup torn or cut.

6 Battery Adapter/ Compartment/ Cap

Verifythatthebatteryadapterispresent.Inspectforcorrosion, moisture, corroded or defective contacts. Verifythattheo-ringispresent.

Adapter is missing, contacts dam-aged or corroded, or o-ring is missing.

7 Function Switch

Check the switch for operation (without a battery). Switch has no definite stopping points. Switch knob is broken or missing.

8 Pivotal Focusing Lens

Check to make sure pivotal focusing lens is present. Pivotal focusing lens is missing.

10 Lenses Inspect optical surfaces for dirt, fingerprint residue, scratches, chips, or cracks.

Scratches or chips hinder vision with N-15 turned on. Cracks are present.Photoreceiver damaged.Pivotal focusing lens damaged.

11 Focusing Ring Rotate the focusing ring to ensure free movement (range is approximately 1/3 turn).

Ring gets stuck or adversely af-fectstheuser’sabilitytoproperlyfocus the unit.

12 Eyepiece Ring Rotate the eyepiece ring to make sure the eyepiece is not too tight or too loose. Range is approximately ½ turn.

Ring gets stuck, is too loose, or ad-verselyaffectstheuser’sabilitytoproperly adjust the diopter.

13 Optional Equipment

Inspect optional items for dirt, or corrosion, damage, and missing parts. Check for proper operation.Ifnecessary,cleanasdetailedinPart4.4.2.

Equipment is damaged or parts are missing.

OPERATIONAL CHECKSCAUTION:Do not activate the N-15 in daylight unless the lens cap is on, or you are operating under dark conditions.CAUTION: Do not forget to open the photoreceiver after finishing operational checks.NOTE:Daylight checks are described below.

14 Function Switch

Install the battery. Verify that the photoreceiver isopen.Turn the switch from OFF to ON. Look for the green glow in eyepiece (it should appear after a slight de-lay), and wait about 10 sec for image to disappear. Look for a flashing red light in eyepiece viewing area.

Image is present.Red light is flashing.

Close the photoreceiver. Pull out the IR and turn the switch from ON to the IR position. Look for a perma-nent red glow in the eyepiece viewing area. Turn the switch from IR to ON position.

Permanent red glow is absent.

16 ViewedImage Inspectforanyoperationaldefects(refertoPart4.3.1:Identification of Operational Defects).

Shading, edge glow, flashing, flick-ering, and intermittent operation, or excessive cosmetic defects are found.

AFTER CHECKING PROCEDURES

17 Turn the unitOFF. Verify that the greenglow fadesfrom the eyepieces.

Remove the battery.

Return the unit and all accessories to the soft carry-ing case.

TABLE 4-1. CONTINUED

26

4.2 TROUBLESHOOTING

4.2.1 OPERATOR TROUBLESHOOTING The purpose of troubleshooting is to identify the most frequently occurring equipment malfunctions, their probable causes, and the corrective actions required to fix them.Table4-2listscommonmalfunctionsthatmayoccurduringtheoperationormaintenanceoftheN-15.Perform the tests, inspections, and corrective actions in the order listed in the table. This table does not list all of the malfunctions that may occur with your device, or all of the tests and corrective actions that may be necessary. If you experience an equipment malfunction thatisnotlisted,orisnotfixedbythecorrectiveactionslistedinthetable,pleasecontactArmasight’sCustomer Service center.

TABLE 4-2. OPERATOR TROUBLESHOOTING

MALFUNCTION PROBABLE CAUSE/ TEST/INSPECTION CORRECTIVE ACTION

Goggles fails to activate.

Battery is dead, missing or improperly in-stalled.

Replace the battery or install it correctly.

Battery contact surfaces or contact springs are dirty or corroded.

Clean the contact surfaces with a pencil eraser and/ or alcohol and cotton swabs.

Defective image intensifier. Please contact Customer Support.

Battery adapter difficult to remove.

Check for damaged battery adapter and battery cap.

If damaged please contact Customer Support.

IR illuminator fails to activate.

Turn the IR illuminator on in a dark area. Visually estimatewhether or not theob-served scene is illuminated.

If the IR illuminator fails to activate, please contact Customer Support.

LED indicators fail to activate.

Visualinspection. Please contact Customer Support.

Poor image quality. Check objective lens or eyepiece focus. Refocus the lens.

Check for fogging or dirt on the lens. CleanthelensasdetailedinPart4.4.2.Ifimage quality is still poor, please contact Customer Support.

Damaged optical components. Please contact Customer Support.

Light is visible around the eyecup.

Check the exit pupil distance value. Readjust for proper eye-relief distance.

Check the eyecup resilience. If the eyecup is defective, please contact Customer Support.

Focusing ring cannot be moved.

Check to see if the focusing ring is bent or broken.

If damaged, please contact Customer Support.

Eyepiece ring cannot be moved.

Check to see if the eyepiece ring is bent or broken.

If damaged, please contact Customer Support.

4.3 IDENTIFICATION OF OPERATIONAL DEFECTS

4.3.1 OPERATIONAL DEFECTSOperational defects relate to the reliability of the intensifier, and are an indication of instability. If iden-tified, the user will need to return the N-15 immediately. Operational defects include shading, edge glow, flashing, flickering, and intermittent operation.

A. ShadingIfshadingispersistent,youwillnotbeabletoseeafullycircularimage(Figure4-1).Shadingisaverydark, high-contrast area with a distinct line of demarcation present, and you cannot see an image through it. Shading always begins on the edge, and will eventually migrate inward until it spans across the entire image area. If you notice shading with your device, please contact Customer Support.

27

SHADING

FIGURE 4-1. SHADING

NOTE:Verifythatanyshadingisnottheresultofimpropereye-reliefadjustment.

B. Edge Glow Edge glow is a bright area (it sometimes appears to be sparkling) in the outer portion of the viewing area(seeFigure4-2).Tocheckforedgeglow,blockoutalllightfromthedevicebycuppingahandoverthe lens. If the image tube is displaying edge glow, the bright area will still show up; if edge glow occurs, please contact Customer Support.

EDGEGLOW

FIGURE 4-2. EDGE GLOW

C. Flashing, Flickering, or Intermittent OperationThe image may appear to flicker or flash. If there is more than a single flicker, check for a loose battery adapter or a weak battery. If flickering continues, please contact Customer Support.

4.3.2 COSMETIC BLEMISHESCosmetic blemishes are usually the result of manufacturing imperfections. They do not affect the reli-ability of the image intensifier, and are not normally a cause for returning the N-15. However, some typesofcosmeticblemishescanworsenovertimeandinterferewiththeuser’sabilitytoproperlyoper-ate the device during missions. If you believe a cosmetic blemish is cause for returning the device, re-cord the specific nature of the problem on the maintenance forms and use the clock method to identify the position of the blemish and its approximate distance from the center (e.g., 5:00 toward the outside, 2:30 near the center, or 1:00 midway). The following are examples of cosmetic blemishes:

A. Bright Spots Abrightspotisasmall,non-uniformbrightareathatmayflickerorappearconstant(Figure4-3).Not all bright spots make the N-15 rejectable. Cup your hand over the lens to block out all light. If the bright spot remains please contact Customer Support. Brightspotsusuallygoawaywhenalllightisblockedout.Verifythatanybrightspotsarenotsimplytheresult of bright light in the area you are observing. Bright spots are acceptable if they do not interfere withtheuser’sabilitytoviewthesceneorperformmissions.

28

B. Emission points Emission points are steady or fluctuating pinpoints of bright light in the image area that do not go away whenallexternallightisblockedfromtheobjectivelens(Figure4-3).Thepositionofanemissionpointwithintheimageareadoesnotmove.NotallemissionpointsarecausetoreturntheN-15.Verifythatemission points are not simply light sources present in the scene you are observing. Emission points are acceptableiftheydonotinterferewiththeuser’sabilitytoperformmissions.

BRIGHTSPOT

EMISSIONPOINT

FIGURE 4-3. EMISSION POINTS AND BRIGHT SPOTS

C. Black SpotsBlack spots are cosmetic blemishes in the image intensifier or debris between the lenses. Black spots areacceptableaslongastheydonotinterferewiththeuser’sabilitytoobservethescene.Noactionisrequiredifthisconditionispresent,unlessthespotsinterferewiththeoperator’sabilitytoperformmissions.

D. Fixed-pattern Noise Fixed-pattern noise is usually a cosmetic blemish characterized by a faint hexagonal (honeycomb) pat-tern that appears throughout the viewing area. This typically occurs in excessively lit environments or whenviewingverybrightlights(SeeFigure4-4).Thispatterncanbeseenineveryimageintensifierifthe level of light is high enough. This condition is acceptable as long as the pattern does not interfere withtheuser’sabilitytoviewanimageorinterferewiththeirabilitytoperformmissions.

FIGURE 4-4. FIXED-PATTERN NOISE

E. Chicken Wire Chicken wire is an irregular pattern of dark thin lines that can appear in the field of view, either through-outtheimageareaorinsectionsoftheimagearea(SeeFigure4-5).Intheworst-casescenario,theselines will form hexagonal or square-wave shaped lines. No action is required if this condition is present, unlessitinterfereswiththeuser’sabilitytoviewtheimageortheirabilitytoperformmissions.

FIGURE 4-5. CHICKEN WIRE

29

4.4 MAINTENANCE

4.4.1 GENERALThe section regarding N-15 operator maintenance consists of operational tests, inspections for the unit serviceability, cleaning and mounting procedures, troubleshooting, and replacement instructions for a limited number of parts. Maintenance instructions covered elsewhere in this manual (PMCS, trouble-shooting, etc.) are not repeated in this section.

CAUTION:The N-15 is a precision electron-optical instrument, and must be handled carefully at all times topreventdamagetothedevice’sbodyormechanisms.

4.4.2 CLEANING PROCEDURES

CAUTION:The coating on the demist shield can be damaged if the shield is cleaned while wet, or if it is cleaned with wet lens paper. Clean the shield only when it is dry, and only use dry lens paper.

CAUTION:Thoroughly dry each item before placing them into the storage case.

Clean the N-15 as follows: 1. Gentlybrushoffanydirtfromtheunit’sbodyusingaclean,softcloth.2. Moisten the cloth with fresh water and gently wipe external surfaces (except for glass surfaces).3. Dry any wet surfaces (except for glass surfaces) with another clean, soft, dry cloth.4. Usingalensbrush,carefullyremoveallloosedirtfromtheglasssurfaces.5. Slightly dampen a cotton swab with ethanol. Gently and slowly wipe the lenses (including the pho-toreceiver and the pivotal focusing lens). Without touching the lens holders, clean the glass surfaces in circular movements, beginning in the center and moving out towards the edge. Change the cotton swab after each circular stroke. Repeat until the glass surfaces are clean.6. Clean the battery contact surfaces and contact springs with a pencil eraser and/ or alcohol-damp-ened cotton swabs.Clean optional mounting devices with a soft brush (cloth), soap, and water as required.Cleanoptionallensesasdetailedinitems4and5above(except for the demist shield).

4.4.3 BATTERY REMOVAL AND REPLACEMENTRefer to Part 3.1.1 for battery installation procedures. No special tools are required to replace the bat-tery.

4.4.4 GOGGLE KIT MAINTENANCE

A. Browpad Replacement Replace the browpad when cracked, torn, or contaminated. Perform the following to remove and re-place the browpads:1. Firmly grasp the goggle kit and remove the old browpad.2. Gently press on the new browpad. Gently smooth out any wrinkles in the new browpad.

30

FIGURE 4-6. BROWPAD REPLACEMENT

B. Chin Strap Reinstallation1.DetachtheVelcrotapefromtheleftsideofthehead-bandandremovethechinstrap.Unfastenthechin strap from the strap assembly.2.ReplacethechinstrapbyjoiningthesidesoftheVelcrotapeontheleftsideofthehead-bandandthreading the end of another strap into the corresponding buckle on the right side of the head-band.

FIGURE 4-7. CHIN STRAP REINSTALLATION

C. Chin Cup Replacement1.DetachtheVelcrotapefromtheleftsideofthehead-bandandremovethechinstrap.2. Slide the chin cup out from the chin strap and replace it with a new one. After replacing the chin cup, attachtheVelcroontheleftsideofthehead-band.

FIGURE 4-8. CHIN CUP REPLACEMENT

31

4.5 SERVICE/PACKING AND UNPACKING

4.5.1 RETURN INSTRUCTIONSFor service, repair or replacements, please email service@armasight.com. To assist the Service Representative (SR) with determining if the item is repairable, please provide the following information: 1. Serial Number of the defective item. 2. Thorough description of the malfunction, defect or damage. 3. An explanation of how the malfunction, defect or damage occurred, if known. If the SR determines that the item is under warranty or should be returned for repair, a Return Material Authorization number (RMA#) will be provided. RMA can be obtained via e-mail to service@armasight.comorviaphonebycallingArmasightCustomerServiceat(888)959-2259Ext.2orviafax(888)959-2260.When returning the N-15 for service or repair, the following procedures should be followed to prevent any additional damage: 1.VerifythattheN-15isfreeofallcontaminantssuchasdirtoranyotherforeignmaterial.2. Remove the battery. 3. Place the cap over the lens. 4.PlacetheN-15inthehardshipping/storagecaseorsoftcarryingcase(ifavailable).Ifthehardship-ping/ storage case is not available, individually package each N-15 unit being returned in a suitable container. Place the N-15 and a copy of the test report or detailed description of the failure in a suitable packing/ shipping container. Mark the package with the RMA#. Ship the items using the fastest, most easily trace-able,prepaidmethodtoArmasightInc.,815DubuqueAvenue,SouthSanFrancisco,CA94080,USA.

32

APPENDIx

A. N-15 LIST OF SPARE PARTS

The parts authorized in this list of spare parts are required for operator maintenance. This list includes parts that must be removed in order to replace authorized parts.

ITEM NO. Column indicates the number used to identify items in Figure A-1.

PART NO. Column indicates the primary number used by the manufacturer to identify an item; this number controls the design and characteristics of the item by means of its engineering, specifications, standards, and inspection requirements.

14

11

6

FIGURE A-1. N-15 SPARE PARTS

5

98

7

3

12

21

10

15

4 13

TABLE A-1. N-15 LIST OF SPARE PARTS

ITEM NO. DESCRIPTION PART NO.

1 Battery Cap N15BC2 Battery Adapter N15BA3 CR123A Lithium Battery ALT4 AA Alkaline Battery ALT5 Battery Cap Retainer N15BCR6 Pivotal Focusing Lens N15PFL7 Objective Lens Assembly N15OLA8 Lens Cap N15LC9 Rail N15PR

10 Eyepiece Assembly N15EPA

33

ITEM NO. DESCRIPTION PART NO.

11 Eyecup Assembly N15ECA12 Function Switch N15FS13 Goggle Kit ANHG00000414 Operation and Maintenance Manual N15OUMM15 Carryng Case N15SCC

B. INTENSIFIER TUBE REPLACEMENT MANUAL

Theintensifiertubecanberemovedorinstalledwithoutdisassemblingtheunit’swiredhousing.Re-moving or installing the intensifier tube only requires the removal of the eyepiece. The airtight seal will be broken, and the final assembly must be purged with nitrogen to eliminate moisture within the Goggles.

B.1 INITIAL SETUPA. Test FacilityClean station in the electronic repair service area.B. ToolsNoneC. Materials/PartsIntensifier Tube Cotton-tipped applicatorsIsopropyl alcohol

TABLE A-1. CONTINUED

34

WARNING:The intensifier’s phosphor screen contains toxic materials!— If an intensifier tube breaks, be extremely careful to avoid inhaling the phosphor screen material. DO NOT allow the material to come in contact with the mouth, eyes, or open wounds on the skin.— If the phosphor screen material contacts your skin, wash it off immediately with soap and water.— If you inhale or swallow any phosphor screen material, drink a lot of water, induce vomiting, and seek medical attention as soon as possible.

NOTE:Before replacing the intensifier tube, confirm that it is out of the warranty period.

B.2 PROCEDURE OF INTENSIFIER TUBE REPLACEMENT

CAUTION:Handle the intensifier tube gently to prevent damage. Treat any supposedly defective tubes as though they are in good condition so they are not damaged when returned to be reused.Gently remove the intensifier tube from within the wired housing.Slowly pull the tube out of the housing in a straight line.If the intensifier tube is not defective, wrap it in lens paper to protect it and store it in a clean, dry location.

ARMASIGHT PRODUCT WARRANTY REGISTRATION CARD

PRODUCT INFORMATION

CUSTOMER INFORMATION

Product Name

Purchase Date

Name

Purchased From

Product Serial #

Address

City

Day Phone #

E-mail address

Country Zip

Home Phone #

Customer Signature Required

35

1. Unscrew the eyepiece (E) from the unit body (A).2. Unscrew the lock ring (D) from the unit body (A).3. Extract the light guide (C) from the unit body (A).4.Extracttheintensifiertube(B)fromthebodyoftheunit(A).

FIGURE B-1. INTENSIFIER TUBE REPLACEMENT

A

BC

DE

CAUTION:To avoid damaging the tube, use caution when opening the shipping container.Treat the defective intensifier tube carefully to avoid damaging it further before returning it.Only set the intensifier tube down on its contact end.DO NOT force the intensifier tube into the wired housing of the device.

NOTE:Retain packaging material for use in returning defective intensifier tubes.

5. Clean both ends of the new intensifier tube with cotton-tipped applicators dampened with isopropyl alcohol.6. Slide the intensifier tube, contact-end first, into the opening of the wired housing. The groove on the side of the tube should engage the ridge inside the opening of the wired housing.7. Slide the light guide (C) into place within the body of the unit (A).8. Screw the lock ring (D) into the body of the unit (A).9.Screwtheeyepiece(E)intothebodyoftheunit(A).

C. PRODUCT WARRANTY REGISTRATION CARD

In order to validate the warranty on your product, Armasight must receive a completed Product War-ranty Registration Card for each unit, or the user must complete warranty registration on our website (www.armasight.com). Please complete the included form and immediately mail it to our Service Cen-ter: Armasight Inc. 815 Dubuque Avenue South San Francisco CA94080USA

V4-150618

www.armasight.com

armasight inc.

815 dubuque avenue South San Francisco

ca 94080, uSa

phone: (888)959-2259Fax: (888)959-2260

intl phone/Fax: (650)492-7755

info@armasight.com

WARNING:This product contains natural rubber latex which may cause allergic reactions! The FDA has noted an increase in the number of reported deaths that are associated with an apparent sensitivity to natural latex proteins. If you are allergic to latex, it is a good idea to learn which products contain it and strictly avoid exposure to those products.